LONDON, April 10 (Reuters) - Arsenal suffered another injury
blow ahead of Sunday's Premier League game against Manchester
United when midfielder Mathieu Flamini was ruled out for up to
three weeks with an ankle injury on Thursday.

The Frenchman suffered the injury in the first half of
Tuesday's Champions League defeat by Liverpool when he was
replaced by Gilberto Silva before halftime and the Brazilian is
set to start in his place at Old Trafford.

'I believe Mathieu will be out for three weeks,' manager
Arsene Wenger told Arsenal TV Online on Thursday.

'It's a big blow but Gilberto has a lot of quality and
experience. He will come in. He can help the team recover and
focus.

'Apart from that we don't have any other injuries from
Tuesday. We have a few bumps and bruises but nothing special.

'Robin van Persie is available. He had two good sessions
yesterday and today. He looks to be OK and we'll see how we go
from here. But Bacary Sagna is out.'

Arsenal almost certainly need to win on Sunday to retain any
hope of taking the title. They are third on 71 points, three
behind Chelsea and six behind United, with five games remaining.